NCERT Solutions for Class 10 Maths Chapter 4
Important NCERT Questions
Quadratic Equation
NCERT Books for Session 2022-2023
CBSE Board and UP Board Others state Board
EXERCISE 4.2
Page No:76
Questions No:3
Find two numbers whose sum is 27 and product is 182.
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Let the first number = x
Therefore, the second number = 27 – x
According to the question,
Product, = x(27 – x) = 182
⇒ 27x – x² = 182
⇒ x² – 27x + 182 = 0
⇒ x² – 13x – 14x + 182 = 0
⇒ x(x -13) – 14 (x -13) = 0
⇒ (x – 13) (x – 14) = 0
⇒ (x – 13) = 0 or (x – 14) = 0
Either x = 13 or x = 14
Hence, the two required numbers are 13 and 14
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